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File: /home/posscale/subdomains/xibo/lib/Validation/Rules/Latitude.php
<?php
/*
 * Spring Signage Ltd - http://www.springsignage.com
 * Copyright (C) 2016 Spring Signage Ltd
 * (Latitude.php)
 */


namespace Xibo\Validation\Rules;


use Respect\Validation\Rules\AbstractRule;

/**
 * Class Latitude
 * @package Xibo\Validation\Rules
 */
class Latitude extends AbstractRule
{
    /** @inheritdoc */
    public function validate($input)
    {
        if (!is_numeric($input))
            return false;

        $latitude = doubleval($input);

        return ($latitude >= -90 && $latitude <= 90);
    }
}